I think this would be tremendously useful, particularly from a community growth perspective. Typically most communities need the same sort of time to build momentum as a habit (around 66 days), so regular topics with thoughtful topics are useful here. The key thing is knowing the URL of the future topic would be important so this could be combined with social media promotion and services like Buffer.

Hey this is one of those features I didn’t know I wanted but now I realise how incredibly useful it would be for setting up say a Q&A thread and have the URL ready ahead of time to set up on a URL shortener and queue up for a Facebook and Twitter post. So yeah would be ace if we could get this in a future release.

Continuing the discussion from UPDATE: Changing timestamp through UI:
In addition to changing the timestamp on a post, would it be possible to create a topic/post and schedule it to ‘post’ at a predefined time in the future?